Fort Longueuil was a stone fort that stood in Longueuil, in Quebec, Canada from 1690 to 1810.
Fort Longueuil was recognized as a National Historic Site of Canada on May 25, 1923.[1] The historic site includes the archaeological site of the fort, which was demolished in 1810. The site extends beneath the present-day Saint-Antoine-de-Padoue Cathedral. It is one of the only buildings in Canada that could ever be considered a castle (fortified residence for a noble), and out of those buildings it most resembles the castles of Europe. This makes it unique in the country.
- ^ Fort Longueuil. Canadian Register of Historic Places. Retrieved 7 April 2012.